[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-spaceskynet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-spaceskynet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-spaceskynet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-spaceskynet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20d691d501a3dadf44719ce046ac649bb6139d74
[INFO] testing LearningOS/rust-rustlings-spaceskynet/20d691d501a3dadf44719ce046ac649bb6139d74 against beta-2024-09-05 for beta-1.82-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-spaceskynet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-spaceskynet on toolchain beta-2024-09-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-09-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-spaceskynet
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-spaceskynet
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-spaceskynet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-spaceskynet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-09-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing LearningOS/rust-rustlings-spaceskynet/20d691d501a3dadf44719ce046ac649bb6139d74 against beta-2024-09-05 for beta-1.82-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-spaceskynet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-spaceskynet on toolchain beta-2024-09-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-09-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-spaceskynet
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-spaceskynet
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-spaceskynet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-spaceskynet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-09-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-09-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c535224a23805f0319c34a18d3adbdbecb5549c4afb63ca98761f1ad17d9b554
[INFO] running `Command { std: "docker" "start" "-a" "c535224a23805f0319c34a18d3adbdbecb5549c4afb63ca98761f1ad17d9b554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c535224a23805f0319c34a18d3adbdbecb5549c4afb63ca98761f1ad17d9b554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c535224a23805f0319c34a18d3adbdbecb5549c4afb63ca98761f1ad17d9b554", kill_on_drop: false }`
[INFO] [stdout] c535224a23805f0319c34a18d3adbdbecb5549c4afb63ca98761f1ad17d9b554
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-09-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c240107bb1b0fca7ee78c079dfb64178ad5cca62c2039766f062a207c77c55
[INFO] running `Command { std: "docker" "start" "-a" "15c240107bb1b0fca7ee78c079dfb64178ad5cca62c2039766f062a207c77c55", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "15c240107bb1b0fca7ee78c079dfb64178ad5cca62c2039766f062a207c77c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c240107bb1b0fca7ee78c079dfb64178ad5cca62c2039766f062a207c77c55", kill_on_drop: false }`
[INFO] [stdout] 15c240107bb1b0fca7ee78c079dfb64178ad5cca62c2039766f062a207c77c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-09-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f4d890512485dd0514271f232fa63c00ef601f9d47d0b2a88e4ccf6dc239b9
[INFO] running `Command { std: "docker" "start" "-a" "22f4d890512485dd0514271f232fa63c00ef601f9d47d0b2a88e4ccf6dc239b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "22f4d890512485dd0514271f232fa63c00ef601f9d47d0b2a88e4ccf6dc239b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f4d890512485dd0514271f232fa63c00ef601f9d47d0b2a88e4ccf6dc239b9", kill_on_drop: false }`
[INFO] [stdout] 22f4d890512485dd0514271f232fa63c00ef601f9d47d0b2a88e4ccf6dc239b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-09-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c8e4e58ca9eb6303cb51c450d59877274f1b55bafb7ad245661d494e73e2a73
[INFO] running `Command { std: "docker" "start" "-a" "8c8e4e58ca9eb6303cb51c450d59877274f1b55bafb7ad245661d494e73e2a73", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-d7d9e571a707086b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test exercise::test::test_finished_exercise ... ok
[INFO] [stdout] test exercise::test::test_pending_state ... ok
[INFO] [stdout] test exercise::test::test_clean ... FAILED
[INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_clean stdout ----
[INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:269:36:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64f6b673f9da - std::backtrace_rs::backtrace::libunwind::trace::h9ce576133d3ff57c
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x64f6b673f9da - std::backtrace_rs::backtrace::trace_unsynchronized::h77316b33bca73147
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x64f6b673f9da - std::sys::backtrace::_print_fmt::haa182cb1ad45bc9f
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64f6b673f9da - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha95eeb186e57c055
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64f6b676599b - core::fmt::rt::Argument::fmt::h71240792b23d8aa6
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x64f6b676599b - core::fmt::write::h1c4d59c42453601a
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/fmt/mod.rs:1178:21
[INFO] [stdout]    6:     0x64f6b673cbf3 - std::io::Write::write_fmt::h08b6f2062a09bc68
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/io/mod.rs:1823:15
[INFO] [stdout]    7:     0x64f6b67411e2 - std::sys::backtrace::BacktraceLock::print::hb66718c44668eb56
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x64f6b67411e2 - std::panicking::default_hook::{{closure}}::h1a6c150385aaf90f
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:266:22
[INFO] [stdout]    9:     0x64f6b6740d23 - std::panicking::default_hook::h5e8a75844aa4ea98
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:290:9
[INFO] [stdout]   10:     0x64f6b65d0f19 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6ee94b0b846f4546
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2245:9
[INFO] [stdout]   11:     0x64f6b65d0f19 - test::test_main::{{closure}}::hccc1c379f17b5ca1
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:132:21
[INFO] [stdout]   12:     0x64f6b6741aa2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8b15e23d52a5df89
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2245:9
[INFO] [stdout]   13:     0x64f6b6741aa2 - std::panicking::rust_panic_with_hook::hea686c8750159a85
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:805:13
[INFO] [stdout]   14:     0x64f6b6741757 - std::panicking::begin_panic_handler::{{closure}}::hfd69333fda29d50a
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:671:13
[INFO] [stdout]   15:     0x64f6b673feb9 - std::sys::backtrace::__rust_end_short_backtrace::hb7c23c01c3c70e35
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x64f6b67413e4 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:662:5
[INFO] [stdout]   17:     0x64f6b65821e3 - core::panicking::panic_fmt::h43de95d595ebabc0
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x64f6b6582736 - core::result::unwrap_failed::hb08d23940033af31
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/result.rs:1677:5
[INFO] [stdout]   19:     0x64f6b658c5aa - core::result::Result<T,E>::unwrap::h845c42b4b080beb4
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/result.rs:1102:23
[INFO] [stdout]   20:     0x64f6b658c5aa - rustlings::exercise::test::test_clean::h3df9c45f2ee1ee2f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:269:9
[INFO] [stdout]   21:     0x64f6b658c4e7 - rustlings::exercise::test::test_clean::{{closure}}::h725088b9a3f03c29
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:268:20
[INFO] [stdout]   22:     0x64f6b65897d6 - core::ops::function::FnOnce::call_once::hb17bbd686a1e53ae
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x64f6b65d588b - core::ops::function::FnOnce::call_once::h9b5e01539a2850c9
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64f6b65d588b - test::__rust_begin_short_backtrace::hfa35fd69df7e11a6
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:620:18
[INFO] [stdout]   25:     0x64f6b65d5108 - test::run_test_in_process::{{closure}}::he6acc04e3f33efba
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:643:60
[INFO] [stdout]   26:     0x64f6b65d5108 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9ed0882d7a8705d4
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x64f6b65d5108 - std::panicking::try::do_call::hb4e1060b1206bf1d
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:554:40
[INFO] [stdout]   28:     0x64f6b65d5108 - std::panicking::try::he7301d205c111379
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:518:19
[INFO] [stdout]   29:     0x64f6b65d5108 - std::panic::catch_unwind::h6c993e01d18171db
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panic.rs:345:14
[INFO] [stdout]   30:     0x64f6b65d5108 - test::run_test_in_process::h39faa778a589c8b3
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:643:27
[INFO] [stdout]   31:     0x64f6b65d5108 - test::run_test::{{closure}}::h59e32a442f6c7a1c
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:564:43
[INFO] [stdout]   32:     0x64f6b659a4d4 - test::run_test::{{closure}}::h6615d2e57f7516c2
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:594:41
[INFO] [stdout]   33:     0x64f6b659a4d4 - std::sys::backtrace::__rust_begin_short_backtrace::h761da13b6d71bc61
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x64f6b659db82 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haa82f2052ad87664
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/thread/mod.rs:522:17
[INFO] [stdout]   35:     0x64f6b659db82 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h709672ecbcc3758b
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x64f6b659db82 - std::panicking::try::do_call::hb005a67f6fd9e082
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:554:40
[INFO] [stdout]   37:     0x64f6b659db82 - std::panicking::try::hec02b24e35e6ab47
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:518:19
[INFO] [stdout]   38:     0x64f6b659db82 - std::panic::catch_unwind::h13617efa0948dabc
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panic.rs:345:14
[INFO] [stdout]   39:     0x64f6b659db82 - std::thread::Builder::spawn_unchecked_::{{closure}}::hb4a56c6b32a8e045
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/thread/mod.rs:521:30
[INFO] [stdout]   40:     0x64f6b659db82 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h26d01bfaffaa945b
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x64f6b6745c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe8e1ebf83e6794e
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2231:9
[INFO] [stdout]   42:     0x64f6b6745c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7d6ff770e6bfeff7
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2231:9
[INFO] [stdout]   43:     0x64f6b6745c8b - std::sys::pal::unix::thread::Thread::new::thread_start::h68792b09799a7d87
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7b1971950ac3 - <unknown>
[INFO] [stdout]   45:     0x7b19719e1a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ----
[INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:342:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetavubuFp\"\u{1b}[0m\n\n\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64f6b673f9da - std::backtrace_rs::backtrace::libunwind::trace::h9ce576133d3ff57c
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x64f6b673f9da - std::backtrace_rs::backtrace::trace_unsynchronized::h77316b33bca73147
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x64f6b673f9da - std::sys::backtrace::_print_fmt::haa182cb1ad45bc9f
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64f6b673f9da - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha95eeb186e57c055
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64f6b676599b - core::fmt::rt::Argument::fmt::h71240792b23d8aa6
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x64f6b676599b - core::fmt::write::h1c4d59c42453601a
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/fmt/mod.rs:1178:21
[INFO] [stdout]    6:     0x64f6b673cbf3 - std::io::Write::write_fmt::h08b6f2062a09bc68
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/io/mod.rs:1823:15
[INFO] [stdout]    7:     0x64f6b67411e2 - std::sys::backtrace::BacktraceLock::print::hb66718c44668eb56
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x64f6b67411e2 - std::panicking::default_hook::{{closure}}::h1a6c150385aaf90f
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:266:22
[INFO] [stdout]    9:     0x64f6b6740d23 - std::panicking::default_hook::h5e8a75844aa4ea98
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:290:9
[INFO] [stdout]   10:     0x64f6b65d0f19 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6ee94b0b846f4546
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2245:9
[INFO] [stdout]   11:     0x64f6b65d0f19 - test::test_main::{{closure}}::hccc1c379f17b5ca1
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:132:21
[INFO] [stdout]   12:     0x64f6b6741aa2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8b15e23d52a5df89
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2245:9
[INFO] [stdout]   13:     0x64f6b6741aa2 - std::panicking::rust_panic_with_hook::hea686c8750159a85
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:805:13
[INFO] [stdout]   14:     0x64f6b6741757 - std::panicking::begin_panic_handler::{{closure}}::hfd69333fda29d50a
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:671:13
[INFO] [stdout]   15:     0x64f6b673feb9 - std::sys::backtrace::__rust_end_short_backtrace::hb7c23c01c3c70e35
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x64f6b67413e4 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:662:5
[INFO] [stdout]   17:     0x64f6b65821e3 - core::panicking::panic_fmt::h43de95d595ebabc0
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x64f6b6582736 - core::result::unwrap_failed::hb08d23940033af31
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/result.rs:1677:5
[INFO] [stdout]   19:     0x64f6b658d40a - core::result::Result<T,E>::unwrap::hea8f7077be2ceb9d
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/result.rs:1102:23
[INFO] [stdout]   20:     0x64f6b658d40a - rustlings::exercise::test::test_exercise_with_output::hbd81dd662c12bf74
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:342:19
[INFO] [stdout]   21:     0x64f6b658d217 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::ha4083b558de1b0ba
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:335:35
[INFO] [stdout]   22:     0x64f6b6589816 - core::ops::function::FnOnce::call_once::hff92ba039dc0ff38
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x64f6b65d588b - core::ops::function::FnOnce::call_once::h9b5e01539a2850c9
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64f6b65d588b - test::__rust_begin_short_backtrace::hfa35fd69df7e11a6
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:620:18
[INFO] [stdout]   25:     0x64f6b65d5108 - test::run_test_in_process::{{closure}}::he6acc04e3f33efba
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:643:60
[INFO] [stdout]   26:     0x64f6b65d5108 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9ed0882d7a8705d4
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x64f6b65d5108 - std::panicking::try::do_call::hb4e1060b1206bf1d
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:554:40
[INFO] [stdout]   28:     0x64f6b65d5108 - std::panicking::try::he7301d205c111379
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:518:19
[INFO] [stdout]   29:     0x64f6b65d5108 - std::panic::catch_unwind::h6c993e01d18171db
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panic.rs:345:14
[INFO] [stdout]   30:     0x64f6b65d5108 - test::run_test_in_process::h39faa778a589c8b3
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:643:27
[INFO] [stdout]   31:     0x64f6b65d5108 - test::run_test::{{closure}}::h59e32a442f6c7a1c
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:564:43
[INFO] [stdout]   32:     0x64f6b659a4d4 - test::run_test::{{closure}}::h6615d2e57f7516c2
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/test/src/lib.rs:594:41
[INFO] [stdout]   33:     0x64f6b659a4d4 - std::sys::backtrace::__rust_begin_short_backtrace::h761da13b6d71bc61
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x64f6b659db82 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haa82f2052ad87664
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/thread/mod.rs:522:17
[INFO] [stdout]   35:     0x64f6b659db82 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h709672ecbcc3758b
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x64f6b659db82 - std::panicking::try::do_call::hb005a67f6fd9e082
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:554:40
[INFO] [stdout]   37:     0x64f6b659db82 - std::panicking::try::hec02b24e35e6ab47
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panicking.rs:518:19
[INFO] [stdout]   38:     0x64f6b659db82 - std::panic::catch_unwind::h13617efa0948dabc
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/panic.rs:345:14
[INFO] [stdout]   39:     0x64f6b659db82 - std::thread::Builder::spawn_unchecked_::{{closure}}::hb4a56c6b32a8e045
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/thread/mod.rs:521:30
[INFO] [stdout]   40:     0x64f6b659db82 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h26d01bfaffaa945b
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x64f6b6745c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe8e1ebf83e6794e
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2231:9
[INFO] [stdout]   42:     0x64f6b6745c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7d6ff770e6bfeff7
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/alloc/src/boxed.rs:2231:9
[INFO] [stdout]   43:     0x64f6b6745c8b - std::sys::pal::unix::thread::Thread::new::thread_start::h68792b09799a7d87
[INFO] [stdout]                                at /rustc/c7c49f44a7bb561dd9317e14908a1e50fa478ce5/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7b1971950ac3 - <unknown>
[INFO] [stdout]   45:     0x7b19719e1a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     exercise::test::test_clean
[INFO] [stdout]     exercise::test::test_exercise_with_output
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rustlings`
[INFO] running `Command { std: "docker" "inspect" "8c8e4e58ca9eb6303cb51c450d59877274f1b55bafb7ad245661d494e73e2a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c8e4e58ca9eb6303cb51c450d59877274f1b55bafb7ad245661d494e73e2a73", kill_on_drop: false }`
[INFO] [stdout] 8c8e4e58ca9eb6303cb51c450d59877274f1b55bafb7ad245661d494e73e2a73